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Finding the Fourth Proportional to 18,576.06, 27,864.12 and 9,811.08

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Solution

The fourth proportional to 18,576.06, 27,864.12 and 9,811.08 is: 14,716.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.06 : 27,864.12 = 9,811.08 : x
  2. Step 2: Convert to fraction form
    18,576.06/27,864.12 = 9,811.08/x
  3. Step 3: Cross multiply
    18,576.06x = 27,864.12 × 9,811.08
  4. Step 4: Simplify right side
    18,576.06x = 273,377,110.45
  5. Step 5: Solve for x
    x = 273,377,110.45/18,576.06
  6. Step 6: Final answer
    x = 14,716.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.